That Lima model is an accurate model of the original (00-class) EMU cars used on Japan's 1435mm gauge very-high-speed rail network. When they were built, the only 1435mm gauge line more-or-less paralleled the 1067mm gauge Tokaido Main Line from Tokyo to Shin-Osaka. Today the 00-class cars are in museums, the 1435mm gauge system has spread across all of Japan and the most recent Shinkansen sets look more like inverted coal scoops than like bullets.
Interestingly, the Japanese use the term Shinkansen to describe the entire system, even though it literally means, 'New Tokaido Line.'
Chuck (modeling Central Japan in September, 1964 - a long way from the Shinkansen)